SDSS J213932.48+112611.2

All names: WD 2137+112, SDSS J213932.48+112611.2, Gaia DR3 1766595743349518848, SDSS J213932.49+112611.2, GALEX J213932.5+112611, Gaia DR2 1766595743349518848, Gaia EDR3 1766595743349518848, SDSS J213932.49+112611.3

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 21 39 32.48 (0.3) 21 39 32.49 21 39 32.48 (0.5) 21 39 32.49 (0.3) 21 39 32.49 21 39 32.02 21 39 32.49
Declination 11 26 11.17 (0.3) 11 26 11.28 11 26 11.17 (0.6) 11 26 11.28 (0.3) 11 26 11.27 11 26 06.72 11 26 11.27
Spectral type DO DO: DO: DC DO: DO: DO: DB
Effective temperature [K] 49601.0 (1074) 18812.0 20812.0 39873.0 (315) 49950.0 (743)
log(g) [cgs] 8.42 (0.4) 8.14 8.33 7.15 (0.2) 8.21 (0.3)
Mass [M] 0.89 (0.2) 0.703 0.805
log(Luminosity) [L] -0.30 (0.3)
Cooling age [Gyr] 0.0019 (0.0003) 0.1199 0.1298
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(N/He)
log(O/He)
log(Na/He)
log(Mg/He)
log(Al/He)
log(Si/He)
log(P/He)
log(S/He)
log(Cl/He)
log(Sc/He)
log(Ti/He)
log(V/He)
log(Cr/He)
log(Mn/He)
log(Fe/He)
log(Co/He)
log(Ni/He)
log(Cu/He)
log(Zn/He)
log(Ga/He)
log(Ge/He)
log(Sr/He)
Parallax [mas] 1.59 (0.4) 2.09 (0.5) 1.59 (0.4)
Distance [pc] 629.91 (149) 477.91 (123) 629.92 (149)
Composition He
Proper motion (right ascension) [mas/yr] -2.999787301 (0.4) -4.018196537 (1) -3.0 (0.4) -5.3
Proper motion (declination) [mas/yr] -7.011423738 (0.4) -8.783910846 (1) -7.011 (0.4) -8.3
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.88 (0.02) 18.88 (0.02) 18.92 (0.02) 18.91 18.91 (0.02)
g magnitude 19.27 (0.01) 19.27 (0.01) 19.30 (0.02) 19.30 19.29 (0.02)
r magnitude 19.70 (0.02) 19.70 (0.02) 19.71 (0.02) 19.70 19.71 (0.02)
i magnitude 20.00 (0.03) 20.00 (0.03) 20.03 (0.03) 20.02 20.02 (0.03)
z magnitude 20.51 (0.2) 20.51 (0.2) 20.43 (0.2) 20.42 20.42 (0.2)
G magnitude 19.49 (0.03) 19.54 19.49 (0.005)
BP magnitude 19.35 (0.03) 19.29
RP magnitude 19.67 (0.08) 19.79
Pan g magnitude 19.35 (0.02)
Pan r magnitude 19.69 (0.03)
Pan i magnitude 20.01 (0.02)
Pan z magnitude 20.17 (0.05)
Pan y magnitude 20.42 (0.1)
E(B-V) 0.046

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.